CN204063721U - A kind of net for air-source heat pump units of frost protection - Google Patents
A kind of net for air-source heat pump units of frost protection Download PDFInfo
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- CN204063721U CN204063721U CN201420540625.2U CN201420540625U CN204063721U CN 204063721 U CN204063721 U CN 204063721U CN 201420540625 U CN201420540625 U CN 201420540625U CN 204063721 U CN204063721 U CN 204063721U
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- air
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- wet curtain
- evaporimeter
- dehydrator
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Abstract
The utility model relates to a kind of net for air-source heat pump units, especially a kind of net for air-source heat pump units of frost protection.It comprises compressor, condenser, throttling unit, evaporimeter, antifrost device, described antifrost device comprises wet curtain, liquid spray device, liquid trap, reservoir, water pump and dehydrator, wet curtain is located at evaporimeter side, liquid spray device is located at above wet curtain, liquid trap is located at below wet curtain, and liquid trap, reservoir, water pump, dehydrator are connected by water pipe successively with liquid spray device.Because the minimizing of the evaporator surface frosting of off-premises station, improve the heat-exchange capacity of evaporimeter, also just improve heating capacity and the Energy Efficiency Ratio of source pump, and glycol water due to freezing point low, general winter, outside air temperature all can not make it freeze, and can keep mobility, conveniently take away moisture and circular flow, and ethylene glycol not easily evaporates, its aqueous solution is one of desirable material as water absorbing agent.The effect of dehydrator is the concentration maintaining solution, thus the freezing point of stabilizing solution and water imbibition.
Description
Technical field
The utility model relates to a kind of net for air-source heat pump units, especially a kind of net for air-source heat pump units of frost protection of the device frosting that can avoid evaporating.
Background technology
Air source heat pump is by consuming certain electric energy, the transfer of heat contained in air to the equipment in hot water.The thermal power transfer of low-temperature heat source (low-grade heat source) can be high temperature (high-grade) heat energy that can directly utilize by it, does not need to consume a large amount of coal, combustion gas, oil, electricity etc. again and obtains, thus reaches the object of saving the high potentials such as coal, combustion gas, oil, electricity.Because air source heat pump has good energy-saving effect, reduce power consumption, thus decrease the discharge of carbon dioxide, sulfur dioxide isothermal chamber gas and toxic gas, decrease the discharge and atmosphere pollution etc. of carbon, therefore heat pump becomes one of current most popular energy-conserving and emission-cutting technology, has great development prospect.
Traditional net for air-source heat pump units is in the process of heating operation, when outdoor environment is lower, the evaporator surface temperature of off-premises station can drop to less than 0 DEG C, lower than the freezing point of water, and due to evaporimeter be cold scattering effect, its surface temperature is lower than ambient temperature, make the moisture in air meet condensation and form droplet, be attached to evaporator surface, these droplets can be formed frost gradually at low temperatures and even be build-up ice, this layer of frost blocks evaporimeter and contacts with the direct of air, reduce the heat exchanger effectiveness of evaporimeter, thus reduce heating capacity and the Energy Efficiency Ratio of source pump.As can be seen here, source pump be kept to have good performance, this layer of frost must be removed, and traditional net for air-source heat pump units is in Defrost operation, not only stop heating, also will consume more acquired heat and carry out these frosts of heating and melting, greatly affect the heating effect of unit.Therefore, reducing evaporator surface frosting is the key improving heat pump performance.
Summary of the invention
Reduce the heating capacity of source pump and the defect of Energy Efficiency Ratio to overcome the evaporator surface frosting in the process of heating operation of traditional net for air-source heat pump units, the purpose of this utility model is the net for air-source heat pump units providing a kind of evaporimeter minimizing frosting in heating operations.
The purpose of this utility model is achieved through the following technical solutions.
A kind of net for air-source heat pump units of frost protection, comprise compressor, condenser, throttling unit, evaporimeter, antifrost device, described antifrost device comprises wet curtain, liquid spray device, liquid trap, reservoir, water pump and dehydrator, wet curtain is located at evaporimeter side, liquid spray device is located at above wet curtain, liquid trap is located at below wet curtain, and liquid trap, reservoir, water pump, dehydrator are connected by water pipe successively with liquid spray device.
The utility model is on the basis of conventional heat pump unit, add spray system and dehydrator and the entirety formed, wherein the important component part of source pump is constant, or by compressor, condenser, throttling unit and evaporimeter four major part composition, spray system is by the aqueous solution (such as glycol water) of liquid spray device to wet certain low freezing point material of curtain surface sprinkling, solution utilizes the feature that wet curtain surface area is large, be dispersed in wet curtain surface to contact with the air sucked, utilize the water imbibition of ethylene glycol, absorb the moisture in air, dry air, reduce evaporator surface frosting, and the effect of dehydrator is discharged collecting the moisture come from air, maintain the concentration of solution.
The beneficial effects of the utility model are: because the minimizing of the evaporator surface frosting of off-premises station, improve the heat-exchange capacity of evaporimeter, also just improve heating capacity and the Energy Efficiency Ratio of source pump, and glycol water due to freezing point low, general winter, outside air temperature all can not make it freeze, and can keep mobility, conveniently take away moisture and circular flow, and ethylene glycol not easily evaporates, its aqueous solution is one of desirable material as water absorbing agent.The effect of dehydrator is the concentration maintaining solution, thus the freezing point of stabilizing solution and water imbibition.
Accompanying drawing explanation
Fig. 1 is the utility model structure principle chart.
Detailed description of the invention
By reference to the accompanying drawings, the utility model is described in further detail.
By compressor work, the vapour-liquid realizing working medium transforms.Working medium gas sprays from 1 exhaust outlet of compressor, becoming high temperature and high pressure gas enters in condenser 2, in condenser 2, working medium passes through heat exchange, thermal release in water, achieve the function of water heating, reduce the temperature of working medium, make the working medium of high-pressure gaseous at condenser inner condensat liquid, working medium becomes liquid state from gaseous state; Then working medium is allowed to become low temperature liquid through throttling unit 3, enter in evaporimeter 4, because in evaporimeter 4, power pressure reduces suddenly, working medium is made to vaporize in evaporimeter, add the effect of outdoor machine fan, a large amount of air is contacted with evaporator surface and carries out heat exchange, reach the object of absorbing heat from environment, the Working medium gas after vaporization is got back to compressor 1 and is carried out next round circulation.Source pump by such form constantly from environment draw heat heat.
Vaporize owing to constantly there being working medium in evaporimeter and absorb heat, therefore the temperature of evaporimeter is also lower than ambient temperature, water vapour in air will be condensed into droplet at evaporator surface, when environment temperature is close to 0 DEG C, evaporator temperature is lower than 0 DEG C, at this moment the droplet condensed on an evaporator will be frozen into frost, can not flow and discharge outside unit, this layer of frost blocks air and contacts with the direct of evaporimeter, constrain the heat exchange of evaporimeter, reduce the ability that unit absorbs heat, affect the performance of unit, in order to remove this layer of frost, utilize cross valve that the flow direction of working medium is adjusted anti-, evaporimeter turns cold condenser, condenser infantile feverish perspiration hair device, HTHP working medium is allowed to flow to original evaporimeter, make its heating and melt surperficial frost, liquefy water is discharged, but such Defrost mode not only can not produce heat when Defrost operation, also to consume the heat partly obtained to go to melt frost, very large on the overall heating capacity impact of unit.
And the utility model utilizes a set of antifrost device newly established, described antifrost device comprises wet curtain 9, liquid spray device 5, liquid trap 6, reservoir 7, water pump 8 and dehydrator 10, wet curtain is located at evaporimeter side, liquid spray device 5 is located at above wet curtain 9, liquid trap 6 is located at below wet curtain 9, and liquid trap 6, reservoir 7, water pump 8, dehydrator 10 are connected by water pipe successively with liquid spray device 5.
To the air that it sucks, drying is carried out lower than when 0 DEG C to evaporator surface temperature, by spraying ethylene glycol solution on wet curtain surface, utilizes its water imbibition, effectively can absorb the moisture in air, reduce evaporator surface frosting.Ethylene glycol solution freezing point is low, is not easy to form solid, can form the slightly low solution of concentration with the condensed water in air, then flows in liquid trap with solution and flows away.Such net for air-source heat pump units just can reduce number of times and the time of Defrost operation, keeps heating operation efficiently and stably.
In order to keep water imbibition and the freezing point temperature of ethylene glycol solution, must keep the concentration of solution in certain scope, the utility model uses the glycol water of 40 ~ 70% concentration.Dehydrator is exactly establish for this reason, dewatering type has two kinds: heating evaporation formula and infiltration membrane type, the present invention can apply wherein any one or two kinds dual-purpose simultaneously, by the detection of reservoir to liquor capacity (liquid level), judge the number of solution comprises water amount, thus control the work of dehydrator, discharge excessive moisture, keep solution concentration.
Claims (1)
1. the net for air-source heat pump units of a frost protection, comprise compressor, condenser, throttling unit and evaporimeter, it is characterized in that: also comprise antifrost device, described antifrost device comprises wet curtain, liquid spray device, liquid trap, reservoir, water pump and dehydrator, wet curtain is located at evaporimeter side, liquid spray device is located at above wet curtain, and liquid trap is located at below wet curtain, and liquid trap, reservoir, water pump, dehydrator are connected by water pipe successively with liquid spray device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420540625.2U CN204063721U (en) | 2014-09-20 | 2014-09-20 | A kind of net for air-source heat pump units of frost protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420540625.2U CN204063721U (en) | 2014-09-20 | 2014-09-20 | A kind of net for air-source heat pump units of frost protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204063721U true CN204063721U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420540625.2U Expired - Fee Related CN204063721U (en) | 2014-09-20 | 2014-09-20 | A kind of net for air-source heat pump units of frost protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204063721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571220A (en) * | 2016-02-23 | 2016-05-11 | 山东富特能源管理股份有限公司 | Regeneration method for defrosting anti-freezing solution for air cooled heat pump |
-
2014
- 2014-09-20 CN CN201420540625.2U patent/CN204063721U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571220A (en) * | 2016-02-23 | 2016-05-11 | 山东富特能源管理股份有限公司 | Regeneration method for defrosting anti-freezing solution for air cooled heat pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528300 Guangdong Province, Foshan city Shunde District Lunjiao street Yongfeng village two industrial zone Patentee after: Foshan Guangteng New Energy Co.,Ltd. Address before: 528300 Guangdong Province, Foshan city Shunde District Lunjiao street Yongfeng village two industrial zone Patentee before: FOSHAN SHUNDE GUANGTENG SOLAR ENERGY ELECTRICAL APPLIANCE Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20210920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |